Burner.



H. C. ZENKE.

B U R N E B.

(Application led Mar. 8. 1901.)

No. 70|,|23. Patented May 27, i902.

(No Model.) 2 Sheets-Sheet I.

INI

v INVENTOI? ATTOH EYS No. 70u23.

Patented May 27, |902. H. C. ZENKE.

BURNER. (A-pplication filed Mar. 8, 1901.)

2 Sheets-Sheet 2 (No Model.)

P'IIIIIlIlll lIHli W/ TNE SSE S /N VEN Tof? A TTOHNEYS UNifrnn STATES;t

PIATENrOFFICE.

IIENRY C. ZENKE, OF NEW YORK, N. Y.

BURNER.

SPECIFICATION forming part of Letters Patent No. 701,123, dated May 27, 1902.

Application filed March 8, 1901.

To LZZ 'whom t may concern:

Be it knoWn that I, HENRY C. ZENKE, a citizen of the United States, and a resident of the city of New York, borough of the Bronx, in the county and State of New York, have invented a new and Improved Burner, of which the following is a full, clear, and exact description.

The invention relates to linotype and other machines in'which a pot containing molten metal is employed.

The object of the invention is to provide a new and improved burner which is simple and durable in construction and arranged to heat the pot and keep the contents thereof in a molten state to insure proper pouring of the metal into a mold or other part.,

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure l is a side elevation of the improvement as applied to a linotype-pot, the latter being shown in section. Fig. 2 is a transverse section of the same. Fig. 3 is anenlarged sectional side elevation of the improvement on the line 3 3 in Fig. 4. Fig. 4C is a plan view of the same, and Fig. 5 is an inverted plan view of the main tip.

In burners for linotype melting pots as heretofore constructed reliance Was had on the pressure of the gas to draw sufficient air into the mixing-chamber to form a proper mixture that would burn with a blue flame at the tip of the burner; but as soon as the pot Was heated to the desired degree and the operator or an automatic device partly shut off the gas then very little if any air was drawn into the mixing-chamber by the gas, andimproper mixing of the gas and a consequent poor ilame at the tip Was the result, producing thereby insuiiicient heat to keep the metal in the pot in proper condition for pouring it into the mold. In order to avoid this and supply the necessary air for combustion, I employ an air-inlet for the mixing-chamber Serial No. 56,338. (No model.)

and an independent inlet for the combustionchamber under the pot to insure a perfect burning of the gas and a consequent proper heating of the pot at all times, no mattei' Whether the gas is fully or only partly turned on. In order to do this,the supply of air for the mixing-chamber and the combustion-chamber is so divided that the air will be drawn into the mixing chamber and to the tip Whether the gas-pressure is wholly or partly turned on, thus insuring a steady supply of air for proper combustion irrespective of the gas-supply. Furthermore, provision is made for any metal that may leak out of the pot to pass at once out of the burner Without danger of clogging the burner, as is so frequently the case with burners heretofore constructed.

The pot on which the burner is applied is provided With the usual casing A, in Which is set a crucible A', having 'a pouring side A2,

and a cylinder A5, in Which reciprocates a piston A4 for forcing the molten metal through a spout into a mold in the usual manner. On the under side of the casing A are formed depending lugs A5, engaged by springs B, en-

gaging corresponding lugs C' on the under side; of the top plate C of the burner and holding the latter spring-supported on the under side of the pot, as is plainly shown in Figs. 1 and 2. The top plate C of the burner is provided with an annular upwardly-extending rim C2, abutting against the under side of the bottom of the casing A, around the central opening A( thereof, as is plainly shown in the drawings.

The mixing-chamber D is fastened to the under side of the top plate C by a suitable screw E, the upper end of the mixing-chamber f1tting into a depending iiange C3, integral with the under side of the top plate C, as shown in Fig. 3. The lower end D' of the mixingchamber opens to the atmosphere, and in the side of the mixing-chamber is a gas-inlet D2, in Which screws or iits a tip F, coupled to a tube F', connected with a suitable gas-supply pipe. (See Fig. l.) The top of the mixing-chamber D is connected by apertures C4 with the interior of a burner-tip G, preferably of the shape shown in Fig. 5, and formed with a depending flange G', having notches G2 in the under side, as plainly indicated in IOO Figs. 3 and 5. This 'tip G is securedto the' top plate O by a screw` H, and said tip extends np into the central opening A in the bottom o'f the casing A, as shown in Figs. l and 2.

Now it is evident that when the gas is turned on it rushes through the gas-inlet D2 into the mixing chamber, and thereby draws air through the lower end D into said mixingchamber to form with the gas a combustible mixture. This mixture passes through the opening C4 into the tip G and is burned upon issuing through the notches G2 on the top plate C within a heating or combustion chamber formed between the top plate C and the under side of the Crucible within the casing A, as will be readily understood by reference to Fig. l.

In order to insure a complete combustion, the top plate C outside of the tip G and the mixing-chamber D is formed with air-inlets C5, so that air can pass directly into the combustion-chamber and insure proper burning` of the mixture, no matter whether the gas is turned on fully or only partly.

An auxiliary tip I in the form of a tube extends upward from one side of the mixingchamber D and reaches within a short distance of the under side of the spout A2, so that part of the mixture of gas and air in the mixing-chamber can pass up said tube and auxiliary tip and be burned at the upper end thereof under the spout A2, so as to heat the same and ykeep the metal contained therein /always in a proper molten condition. The combustion-chamber extends under the crucible A and under the spout A2 to connect with the usual chimney A7 for carrying off the products of combustion.

By the arrangement described an air-supplyindependeut of that going to the mixingchamber is had forv the combustion-chamber, so that no matter how strong the pressure of gas in the mixing-chamber at the tip F the mixture will always be properly formed within the ,mixing-chamber, and a proper burning of this mixture, no matter how weak, will always be had at the tips G and I, owing to the 4air passing through the apertures C5 into the combustion-chamber and causing a bright burning of the gas mixture at the tip G, and thereby drawing air into the mixing-chamber D at the inlet D' to insure a proper mixture of air and gasin the mixing-chamber no matter Vhow weak the pressure of the gas may be. It Will be understood from the foregoing that the supply ot' air is divided, and the air-inlets C5 and D are so proportioned as to accomplish the desired result. v

By having the spring supports for the burner the rim C2 of the top plate is always held in proper contact with the under side of the casing A; but the burner can be readily detached at lany time by disconnecting the springs from the lugs In case the crucible A' leaks vthen the molten metal dropping upon the top plate C can readily pass through the apertures C5 and out of the burner without clogging the same.

Although I have shown 'and described my burner as for heating metal in a pot, it is evident that it may be used for other purposes.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patentl. Aburner having a mixing-chamber provided with a vertical and a horizontal member, the vertical member being open at its lower end to the atmosphere and having a gas-inlet, a burner-tip connected with the top of said mixing-chamber, a heating or combustion chamber surrounding the burner-tip and having air-inlets separate from the air-inlets of the mixing-chamber, and means for supporting the mixing-chamberfrom the heating-chamber and holding the same in contact therewith, as set forth.

2. A burner having a mixing-chamber provided With air and gas inlets and having a vertical and a horizontal member, a burner-tip connected with said mixing-chamber, a heating or combustion chamber surrounding the burner-tip and having air-inlets separate from the air-inlets of the mixing-chamber, and an auxiliary tip connected with the horizontal member of said mixing-chamber and extending in the heating or combustion chamber, as set forth.

3. A burner having a mixing-chamber provided with air and gas inlets and formed with a vertical member and a horizontal member, a burnertip connected with said mixingchamber, a heating or combustion chamber surrounding the burner-tip and having airinlets separate from the air-inlets of the mixing-chamber, and an auxiliary tip connected with the top of the horizontal member of said mixing-chamber and extending in the combustion-chamber, the upper end ot' said auxiliary tip reaching to the outlet of the combustion-chamber, as set forth.

el. The combination with a burner having a mixing-chamber provided with air and gas inlets, and a burner-tip connected with the top of the mixing-chamber and formed'with a depending iiange provided with notches, ot' a heating or combustion, chamber surrounding the burner-tip, and having air-inlets separate from the air-inlets of the mixing-chamber, and a receptacle for the material to be heated, the said receptacle forming the top of the heating or combustion chamber, as set forth.

5. The combination with a burner having a mixing-chamber provided with air and gas inlets, and a burner-tip connected with said mixing-chamber, ot' a heating or combustion chamber surrounding the burner-tip and having air-inlets separate from the air-inlets of the mixing-chamber, and a receptacle for the material to be heated, said top plate having an annular upwardly-extending rim for di- IOO IIO

rect engagement with the bottom of the heating-chamber, the top plate also having a flange depending from the under side and within which extends the upper end of the mixing-chamber, as set forth.

6. A burner having a top plate provided with a rim, a heating or combustion chamber against the bottom of which the rim of the top plate is adapted to engage, and a spring having its ends extending upward and engaging respectively the heating-chamber and the top plate of the burner for supporting the latter and holding the rim in contact with the under side of the heating-chamber, as set forth.

7. A burner having a mixing-chamber provided with an air-inlet and connected with a gas-supply, a top plate for said mixing-chamber and extending beyond the same, the top plate having a depending flange adapted to receive the upper end of the mixing-chamber, the extended portion of the top plate having air-inlet openings, and a burner-tip on the upper surface of the top plate and connected with said mixing-chamber the said burner-tip fitting within a correspondinglyshaped ange on the top plate, as set forth.

8. A burner, comprising a heating or combustion chamber, having an opening therein, an apertured top plate having a rim fitting the under side of the heating-chamber around the opening, the 4said top plate having a depending flange on `its under face, a burner-tip on the upper surface of the top. plate, and a mixing-chamber having a vertical member open at its lower end to the atmosphere and provided with a gas-inlet and a horizontal member extending from the upper portion of the vertical member, the said mixing-chamber being connected with the burner-tip by apertures in the top plate, the upper end of the mixing-chamber fitting within the depending flange on the top plate, as set forth.

9. The combination with a heating or combustion chamber having an opening in its bottom, of a burner having a top plate carrying a burner-tip and provided with a rim fitting the under side of the heating-chamber around the opening, and springs engaging lugs on the burner and the heating-chamber for connecting the burner with said heatingchamber and for holding the rim of the top plate in firm contact with the under side of the heating-chamber, as set forth.

10. The combination with a heating-chamber provided in its under side with depending lugs, of a burner having a top plate arranged to engage the under side of the heating-chamber, the top plate being also provided with depending lugs, and springs engaging the lugs of the heating-chamber and the said top plate, as set forth.

11. The combination with a heating-chamber, of a burner engaging the under side of the heating-chamber, and a bent spring coiled at the bend and having its members extending upward and connected respectively with the heating-chamber and the burner to hold the burner against the heating-chamber, as set forth.

12. The combination with a heating-chamber provided on its under face with depending lugs, of a burner on the under side of the heating-chamber and also provided with lugs in horizontal alinement with the lugs on the heating-chamber, and springs engaging the lugs to hold the-burner against the heatingchamber, as set forth.

13. Aburner,con1prisingamixing-chamber having a vertical member open at itslower end to the atmosphere, and provided near said lower end with a gas-inlet extending up'- ward and inward through the Wall of said vertical member, a top plate for said mixingchamber provided with an upwardly-extending rim, and aburner-tip on the top-plate Within said rim and connected with the mixing-chamber, the said burner-tip having a depending flange provided with notches and engaging a correspondingly-shaped flange on the top plate, as set forth.

14. Aburner,comprisingamixing-chamber having a vertical member and an approximately horizontal member, the vertical member being open at its lower end to the atmosphere, and provided near said lower end with a gas-inlet adapted for connection with a gassupply pipe, a top plate for the mixing-chamber and extending beyond the same, the top plate having an integral depending flange adapted to receive the upper end of the mixing-chamber, a burner-tip on the top plate and connected by apertures in the top plate with the mixing-chamber, the extended portion of said top plate being also provided with apertures, and an upwardly-extending auxiliary tip connectedwith the horizontal member of the mixing-chamber near the end thereof, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY C. ZENKE.

Witnesses:

EVERARD BOLTON MARSHALL, F. W. HANA'FORD. 

